International Journal of Advanced Studies (Sep 2018)
COMPLEX METHODS OF IMPROVING THE EFFICIENCY OF THE FUNCTIONING OF WORKING WATER USE SYSTEMS OF ENTERPRISES OF THE FUEL AND ENERGY COMPLEX
Abstract
The methods of decontamination of biological pollutants of sewage of enterprises of the fuel and energy complex are considered. Effective wastewater treatment with a view to their re-use in circulating water use systems is one of the topical problems of our time. Large volumes of water consumption and water disposal by enterprises of the heat and power industrial complex dictate the necessity of introducing resource-saving, environmentally safe and economically viable technologies for recycling water use in these industries. Wastewater treatment is one of the topical problems of our time. The main hydraulic structures intended for the accumulation, cooling and partial biological treatment of waste water of the FEC are biological ponds. The water supplied from the pond-coolers for further purification for the purpose of repeated use does not meet the requirements for water for technical purposes. In the article problems and ways of the decision of increase of efficiency of functioning of circulating system as a whole are considered on the basis of processes of an intensification of biological sewage treatment and inhibition of biofouling in systems of pipelines. The results of laboratory studies are presented, the use of a chemical inhibitor based on hydrogen peroxide is substantiated, the main design parameters of cavitation treatment of water and inhibitor concentrations are given. Purpose: Improving the quality of wastewater treatment at thermal power plants, increasing the overall efficiency of circulating systems using a chemical inhibitor, and introducing cavitation technologies, as well as reducing the environmental risk from wastewater discharge into water bodies. Results: High rates of efficiency of intensification of biological wastewater treatment at TEK enterprises – 86.49%, relaxation and secondary contamination of microorganisms – 6.58%, and a prolongation period for disinfection of pipelines were calculated – 30 days with a single inhibitor treatment. Methodology: in the article the technique of sowing of microorganisms in the Tamiya medium was used, and also the technique of direct counting of the number of cells of biofouling on Goryaev’s chambers was applied. Practical implications: the results obtained are advisable to be applied to heat and power complexes, as well as other enterprises having a circulating water use system.
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